Dumping-scow



(No Model.)

J. DAVID.

DUMPING SOOW.

Patented Oct. 4, 1881.

UNITED STATES PATENT OFFICE.

JAooB DAVID, ouBRooKLYN, NEW YORK.

DUMPlN G-SCOW.

SPECIFICATION forming part of Letters Patent No. 247,803, dated October 4, 1881.

Application filed August 13, 1881. (No model.)

To all whom it may concern Be it known that I, JAooB DAVID, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented a new and useful Dumping- Scow, for which I have not obtained a patent in any foreign country, neither have others by or with my consent, and the same has not been on sale or in public use in the United States to my knowledge for more than two years, and of which the following is a specification.

My invention relates to improvements in dumping-'scows that are made in two sections, having the plane of division longitudinally through the center, meeting each other at a longitudinal line through the center of the deck, and being a distance apart at the bottom, having a passage-way for the water through the center between the sections, with the sections attached on the outer side by suitable joints to a frame above the deck, to allow the sections to part from the center of the scow and return to position afterdumping the load 5 second, to a device for dischargin g the load; third, to a device for keepingthe sections apart while discharging; fourth, to a device for returning the sections to position, as hereinafter more fully set forth, reference being had to the accompanying drawings and the letters of reference marked thereon.

Figure 1 is a view, in perspective, of the en-' tire scow from above at a point near the bow end. Fig. 2 is a view, in perspective, of a secin the center of the scow at the lineM, making adeck over all that is level and on the same plane. The sides of the sections AB that ador approximate each other are at an obtuse angle to the bottom of the scow, and an acute angle to the top or deck of the scow when the sections A and B are in position, as shown at Fig. 1, there will be a longitudinal triangular space, with the apex of the triangle uppermost, through the centerof the scow,and each side being straight and parallel to the other, the water will pass freely through this passageway without compression, reducing the resistance of the scow in passing through the water.

The part marked 0 is a strong frame the same in width as the deck of the two sections A B together, and nearly of the same length as the scow, to which frame 0 the sections A and B are attached on their outside top edges by one or more sliding hinges, as shown at J, and theinside or approximate edges in the center of the scow are attached to the under side of the frame at thebow and stern by the hooks and eyes, (marked H.) Theframe 0 also forms a bulwark on the sides and ends of the scow, to hold the load in place. One end of each of the chains marked K, Fig. 4., is attached to the frame 0 at the stern, and the other ends of the chains are attached to the sections A and B, respectively, as shown at Fig. 4-

The catch L is attached at one end to the front of the frame G by a hinge, as shown at Fig. 1, and when in place the other end rests in a notch formed by the blocks N, Figs. 1 and 2, which blocks (markcdN) are on the extreme front or bow end of the deck of the scow, in the center, close to the adjoining edges of the sections A and B, one block on each section, as shownat Figs. 1 and 2.

The posts D andE are attached to the deck of the sections AB by a pivot or hinged joint, close to the approximate edges, near the bow, and slide 11 a slot affixed to the backside of the front part of the frame, as shown at Fig. 3.

The cam or friction levers F and G are attached by apivotal joint to the outside edge of the slots or eyes, through which the posts E D slide, and each of the eccentrics or cams on the fixed ends of levers F G press against one side of each of the posts E D. The free ends of the levers F G are of sufficient weight to automatically hold the posts E and D in a fixed position. The eccentrics or clutches on the levers F G are arranged in such a manner as to allow the posts E and D to slide down freely, but to seize and hold the posts E 'D firmlyat any point on theirlength and prevent the same from sliding upward, as shown at Fig.3.

When the different parts are constructed, connected with, and attached to each other, as heretofore shown and described, the method of operating and using the sameis as follows: The load is placed on the deck of the screw, inside the frame (J, Fig. 1,the line from the tow ing power or tug is attached to the front of the frame (3, and to dump the load the catch or stopper L on the bow end of the scow, is raised out of the notch formed by the blocks (marked N) andlit'ted high enough to pass over the blocks N,the forceof the towing-power being directlyou the frame O,and the resistance of the water against the bow of the scow A B causes the frame (J to be pulled forward and slide toward the bow of the scow; andwhen the frame is pulled forward the hooks (marked H) on the front and rear end of the scow slip out of the eyes affixed to the front and rear end ofthe frame, and the weight of the load causes the sections A B to part on the longitudinal line M, while the slide-hinges (marked J) hold the sides or outside edges of the sections A and B to the frame 0, causing the deck of the scow to become two inclined planes pitching toward the center, as shown at Figs. 2 and 3, off which the load slides into the water. The chains K on the stern keep the sections A B from descending too far and turning over. The posts D E, being attached at one end to the bow end of the sections A B, as shown, also prevent the sections from turning over, and having descended through the slot and followed the dip of the sections A B, are griped and held by the eccentrics or cams on the ends of the levers F G, as shown at Fig. 3,keeping the scctionsAB in the position shown at Figs. 2 and 3. \Vhen the sections of the scow AB are parted and held in position by the posts D E, as shown at Figs. 2 and 3, any part of the load that is too light to sink will be washed from between the sectionsAB by the passage of the scow through the water.

By raising the free endsof the levers F and G and releasing the pressure of the cams the posts D E will slide up at the time the sections A and B rise, and the sections A B will again be in the position shown at Fig. 1. Then, by pushing the frame back to its place the hooks will catch in the eyes, as shown at E, Fig. 1, and the catch L will drop into its place, restoring all the parts to the first position.

I am aware that prior to my invention dumping-scows have been made that part in the middle; but

What I claim as my invention is- 1 A scow made in two sections, having the plane of division longitudinally through the center, with the approximate sides of each section adjoining and touching each other at the deck and gradually parting from each other toward the bottom, leaving a longitudinal water-way between the sections below the deck, and the sections attached at their outside top edges by hinges to a frame in such a manner that the sections will part and swing from and to the center parallel to each other, as shown and described.

2. A scow made in two sections, having the plane of division longitudinally through the center, with the approximating sides of each section adjoining and touching each other at the deck and gradually parting from each other at the bottom, leaving a longitudinal waterway between the sections below the deck, in combination with a sliding frame and slip hinges or joints, the slip-joints constructed and attached to the outside edges of the frame and the outside top edges of the sections in such a manner that the frame will slide forward and backward longitudinally to the plane of division of the sections, substantially as shown and described.

3. In combination withadumping-scow made in two sections, having the plane of division longitudinally through the center, with the approximatin g sides of each section adjoining each other at the deck and receding from each other toward the bottom, leaving a longitudinal water-way between the sections below the deck, having a sliding frame that will slide forward and backward longitudinally to the plane of division, with slip-joints attached to the out side top edges of the sections and the outside edges of the frame in such a manner that the frame may slide forward and backward on a longitudinal line to the plane of division, and the sections swing from and toward each other parallel to the plane of division, the sliding hooks and eyes H, for holding the sections in place and connecting the same to the frame, substantially as shown and described.

4. In combination withadumping-scow made in two sections, having the plane of division longitudinally through the center, with the approximating sides of each section adjoining each other at the deck and gradually receding from each other toward the bottom, leaving a longitudinal water-way between each section below the deck, havingaslidingframe attached to the sections by slidingjoints at the outside top edges of the sections and outside edges of the frame in such a manner that the sections will swing from and toward each other parallel to the plane of division, having hooks attached to the sections, and eyes 011 the frame in such a manner that when the sections are together the hooks and eyes will hold the sections together at the center, as described, the locking device L and N, so arranged that when the catch L is raised the frame will slide forward and dump the load, substantially as shown and described.

5. In combination with a d um ping-scow made in two sections, having the plane of division longitudinally through the center, with the approximating sides of each section adjoining each other at the deck and gradually receding from each other toward the bottom, leaving a longitudinal water-way between the sections belowthe deck, having a slidingfrarneattached hooks and eyes will hold the sections together at the center, and having a locking device that will, when raised, allow the frame to slide forward and dump the load, the posts D E and the cam-levers F G, arranged to keep the sections apart when dumping the load, substantially as shown and described.

JACOB DAVID.

Witnesses:

E. H. QUANTIN, A. VANDEWEER, Jr. 

